Above-Ground Pools · Best Cold Plunge Tub
The best cold plunge tubs, judged by how much water you have to cool
Buy the smallest tub you fit in, not the biggest one you can afford. Gallons are what you pay to chill - every session, forever - and the cheapest tub here holds nearly three times the water of the dearest one.
Heads up: we earn a commission if you buy through the links on this page, at no extra cost to you. It never decides the ranking — here is how we pick and here is the full disclosure. Prices are checked automatically; last verified October 17, 2026.
Quick picks
Segmented before it is ranked — the right answer depends on which of these you actually are. Tap any row for the full write-up.
Best overall if you are going to keep doing this
Seventy-seven published gallons is the feature, not a limitation: it is the only tub here that fits inside the published 79-gallon rating of an affordable chiller. Rigid, insulated, made in the USA.
| # | Product | Best for | Score | Price |
|---|---|---|---|---|
| 1 | Ice Barrel 300 Insulated Cold Plunge Tub Seventy-seven gallons, rigid recycled LLDPE, polyurethane foam insulation through the barrel and the lid, and 3/4 in NPT chiller ports. The small capacity is the feature: it is the only tub here that sits inside the published rating of an affordable chiller. | The least water to cool, which is the whole point of a barrelSeveral seasons | 7.7out of 10 |
Best cheap tub, and the one that can take a chiller later
A hundred and ten published gallons with double-layer insulation, a thermal lid and chiller compatibility stated. Start on ice without buying a tub you have to replace.
| # | Product | Best for | Score | Price |
|---|---|---|---|---|
| 1 |  The Pod Company Ice Pod Pro, 110 gal A hundred and ten published gallons with double-layer insulation, a reinforced thermal lid, a UV-resistant nylon shell and chiller compatibility stated on the listing. If you are starting with ice and might add a chiller, this is the tub that does not have to be replaced to do it. | The best-specified cheap tub, and the one that can take a chiller laterOne honest season | 7.5out of 10 |
Cheapest way to find out whether you will stick with it
A hundred and five gallons, a 6-layer insulated cover in the box and eight steel support rods, for less than a bag of pool salt. Ice only, and its maker says to bring it indoors below freezing.
| # | Product | Best for | Score | Price |
|---|---|---|---|---|
| 1 |  Bubplay Ice Bath Cold Plunge Tub, 105 gal A hundred and five published gallons, a fitted insulated cover and eight stainless support rods for about the price of a pool cover clip set. Buy it to discover whether cold water is a habit or a January idea, and expect to replace it if it becomes a habit. | Finding out whether you will actually do thisOne honest season | 6.3out of 10 |
If you are tall, and you understand the bill
Two hundred and sixteen published gallons, 3.1 in drop-stitch walls and a published fit to 6 ft 9 in. Read the running-cost section before buying it - this is the tub the trap is about.
| # | Product | Best for | Score | Price |
|---|---|---|---|---|
| 1 |  VEVOR Cold Plunge Tub, 216 gal The most tub for the money and the most water to cool: 216 published gallons in a 59 x 31.5 x 29.9 in oval with 3.1 in drop-stitch walls and G1/2 in chiller ports. It is nearly three times the water of an Ice Barrel 300 and well past the published rating of every affordable chiller. | Lying down rather than sitting up — and the trap that comes with itOne honest season | 6.9out of 10 |
Best rigid tub for tall users
The reclining barrel, published to fit 6 ft 9 in, and the only product in this category with an R-value attached to it. Its own two channels publish two different capacities.
| # | Product | Best for | Score | Price |
|---|---|---|---|---|
| 1 |  Ice Barrel 500 Freestanding Cold Plunge The reclining Ice Barrel, published as fitting users up to 6 ft 9 in, and the only tub on this page with an insulation figure attached to it: Ice Barrel states the line is "rated at R-16". Its capacity is published as two different numbers depending on which of the maker's own channels you read. | Tall users who want a rigid, insulated tubSeveral seasons | 7.6out of 10 |
Cheapest way to stop buying ice
A 1/3 HP chiller that publishes both the numbers that matter: rated for up to 79 gallons, cooling at 2 degreesF per hour. Check your tub against the first one.
| # | Product | Best for | Score | Price |
|---|---|---|---|---|
| 1 |  FADHOLE 1/3 HP Cold Plunge Chiller A 1/3 HP chiller that publishes the two numbers that decide everything: rated "for up to 79 gallons (300L)" and cooling at 2 degreesF per hour. Read those together and most cheap tubs on this page are too big for it, which is the single most useful fact in this category. | The cheapest way to stop buying ice — if your tub is small enoughSeveral seasons | 6.7out of 10 |
The short version
- Gallons are the running cost. Published capacities here run 77 to 216. The 216-gallon tub needs nearly three times the ice of the 77-gallon one, every session, forever.
- The affordable chiller publishes a 79-gallon limit. Only one tub on this page is inside it. Everything else is ice-only or needs a much bigger unit.
- Ice Barrel publishes two different capacities for the 500. 94 gallons on its own site, 105 on its Amazon listing. We report it rather than pick one.
- Nobody publishes a sanitizer target. No ppm figure exists anywhere in this category, which is a real gap next to the CDC’s published hot tub numbers.
Buy the 77-gallon Ice Barrel 300 if you intend to keep this up, and the 110-gallon Ice Pod Pro if you are starting out but want the option of a chiller later. If you only want to find out whether cold water is a habit or a January idea, the 105-gallon Bubplay costs less than a bag of pool salt. If you are over six feet and want to lie down, read the running-cost section before you buy the 216-gallon inflatable - it is the cheapest tub here and the most expensive one to own.
A cold plunge tub is an above-ground backyard water vessel whose season is winter, which is why it is on this site. It is also the one piece of backyard water equipment where the purchase price tells you almost nothing about the cost.
The trap, stated once
Every tub in this category is sold on capacity, as though more gallons were better. For a swimming pool that is roughly true. For a cold plunge it is backwards, because you are not swimming in the water - you are refrigerating it.
| Tub | Published gallons | Inside the 79 gal chiller rating? | Format |
|---|---|---|---|
| Ice Barrel 300 | 77 | Yes | Rigid, insulated, seated |
| AS ColdPlunge bundle tub | 100 | No - 21 gal over | Inflatable, 10 mm EPE |
| Bubplay | 105 | No | Inflatable, no chiller ports |
| Ice Barrel 500 | 94 or 105 (both published) | No | Rigid, insulated, reclining |
| Ice Pod Pro | 110 | No - 31 gal over | Inflatable, chiller-ready |
| VEVOR | 216 | No - 2.7x over | Inflatable, drop-stitch |
Read that table alongside the prices in the buy buttons and the shape of the category becomes clear: the cheapest tubs hold the most water, and the dearest tub holds the least. That is not a coincidence or a swindle. A rigid, insulated 77-gallon barrel is expensive to make and cheap to run. A 216-gallon inflatable oval is cheap to make and expensive to run.
What capacity does to the ice
- Smallest tub here
- 77 published gallons (Ice Barrel 300)
- Largest tub here
- 216 published gallons (VEVOR)
- Affordable chiller rating
- "Designed for up to 79 gallons (300L)", published
216 / 77 = ratio of water to cool; 216 / 79 = multiple of the chiller's published rating
2.8x the water, and 2.7x the chiller's rated capacity
Why the small barrel wins
The Ice Barrel 300 publishes 77 gallons, polyurethane foam insulation through the barrel and the lid, 3/4 in NPT chiller ports with 14 TPI, and a weight of “61 lbs. when empty (700 lbs. when full)”. Three of those four figures matter:
77 gallons is inside the cheap chiller's published rating
It is the only tub on this page that is. That means the ice-free route costs a few hundred dollars rather than four figures, which is the difference between a habit and a project.Insulated barrel AND lid means the cold stays in
A chilled tub that holds temperature overnight is cooled once. An uninsulated one is cooled again every morning. No thickness or R-value is published for the 300, so "thick polyurethane foam" is the whole claim.Rigid construction has nothing to puncture
No fabric, no seams, no air chamber. Ice Barrel does publish that the LLDPE "will fade over time if left in direct sunlight", and fading is not warranted.700 lb full decides where it stands
That is a real load for a deck. Published weights are what let you check it rather than find out.
The published-figures conflict on the Ice Barrel 500
Ice Barrel publishes the 500’s capacity as 356 L, which it gives as 94 gallons, on its own product page. Its Amazon listing for the same tub describes a “105-gallon capacity”. Its own site also publishes two empty weights for it - 104 lb on the product page and 106 lb in the FAQ.
None of that is disqualifying, and an eleven-gallon discrepancy will not change anyone’s plunge. It matters because capacity is the number this entire page turns on, and the only honest thing to do with two published figures from one maker is to print both. We have done the same thing before with three retailers publishing three flow figures for one pump.
What the 500 does publish, uniquely, is an insulation rating: Ice Barrel states the line is “rated at R-16”. That is the only R-value anywhere in this category, and it stands in sharp contrast to the inflatable tubs, which publish “double-layer insulation”, “6-layer insulated” and “10 mm EPE” - three different vocabularies, none of them comparable to each other.
The inflatables, and what they actually publish
They are not interchangeable, and the differences are published rather than inferred.
| Tub | Insulation claim | Chiller ports | Published fit |
|---|---|---|---|
| Ice Pod Pro | Double-layer insulation, reinforced thermal lid | Compatible, maker's own chiller | Up to 6 ft 7 in |
| Bubplay | 210D outer fabric, 6-layer insulated cover | None | Up to 6 ft 7 in |
| AS ColdPlunge tub | Reinforced PVC, 10 mm EPE | Included in bundle | Not published |
| VEVOR | None published - 3.1 in drop-stitch walls only | Standard G1/2 in | Up to 6 ft 9 in |
Two things stand out. The VEVOR is the only tub publishing a material temperature range - it claims the drop-stitch fabric resists deformation from -4 degreesF to 140 degreesF - and it is the only one publishing no insulation specification at all. And the Bubplay publishes its own winter limitation: “use indoors when temperatures drop below freezing”. For a northern buyer that is most of the plunge season, which makes it a garage tub rather than a backyard one.
What this category does not publish
Three gaps, and they are the three things a buyer most needs.
No chiller publishes an input wattage. They publish horsepower, which is a compressor rating rather than a power draw, and in one case a BTU figure. Without watts there is no kWh, and without kWh the electricity cost of an ice-free plunge habit cannot be calculated from published figures. This is the same gap we found on pool heat pumps, where none of the three units published a COP.
No maker publishes how much ice a session takes. Ice Barrel’s FAQ covers target temperature, session length and water changes, and says nothing about ice quantity or how long it lasts. Every “two bags” figure you will read online is somebody’s anecdote.
No maker publishes a sanitizer target. The CDC publishes at least 3 ppm free chlorine for hot tubs, and this category answers the same question with a proprietary “Water Stabilizer” described as working “without chlorine” and no number. Cold water slows microbial growth; it does not sterilize. Our hot tub water change guide is the nearest published framework, and it is for warm water.
Should you buy one at all?
The format that makes sense for most backyards is the cheap insulated inflatable, used with ice, through the winter - because in January the ambient air is doing a large share of the work for free, and in July it is doing none of it. That seasonal asymmetry is the one real advantage this category has over a hot tub, and it is why this page exists in October rather than in May.
If what you actually want is to sit in warm water in the cold, that is a different purchase with a different bill, and we have compared them directly in cold plunge against hot tub.
The picks, in full
Scores are our own reading of published specifications. They are not test results — we have not tested these products and we do not claim to.
Pick #1 · The least water to cool, which is the whole point of a barrel
Ice Barrel 300 Insulated Cold Plunge Tub
Ice Barrel
Seventy-seven gallons, rigid recycled LLDPE, polyurethane foam insulation through the barrel and the lid, and 3/4 in NPT chiller ports. The small capacity is the feature: it is the only tub here that sits inside the published rating of an affordable chiller.
#ad how this is funded · price as of October 17, 2026
Key specs
- Water capacity
- "Holds 292 liters (77 gallons)", published by Ice Barrel
- Dimensions
- W 35.5 in x H 30.5 in, published
- Weight
- "61 lbs. when empty (700 lbs. when full)", published
- Material
- Recycled LLDPE, "Made in the USA from recycled materials", published
- Insulation
- "Thick polyurethane foam insulation throughout the barrel and lid"; no thickness published for the 300
- Chiller ports
- "Chiller ports are 3/4in NPT with 14 TPI", published; bulkheads, seals and a pre-filter included
- Fits users up to
- "comfortably fits most body sizes up to 6'", published
How it scoresour reading of published specs, not a test result
- Capacity
- 5.5
- Insulation
- 9.0
- Chiller fit
- 9.5
- Build
- 9.0
- Value
- 5.5
Overall 7.7 / 10
What works
- 77 published gallons is inside the 79-gallon rating of the cheap 1/3 HP chiller — the only tub here that is
- Insulated barrel and lid, so a chilled tub holds temperature between sessions instead of being re-cooled
- Rigid construction with no fabric, no seams and nothing to puncture
- Publishes its empty and full weights, which tells you where it can stand
What doesn't
- You sit upright with knees bent; the published fit is up to 6 ft and no taller
- The warranty page contradicts itself — it offers a "limited lifetime warranty" and then states "The limited lifetime warranty is limited to 3 years"
- Ice Barrel publishes that the LLDPE "will fade over time if left in direct sunlight", and fading is not warranted
- No insulation thickness or R-value published for the 300, so "thick" is the whole claim
Skip it if: Lying down, and anyone over 6 ft. The maker's own published fit is up to 6 ft; above that the barrel format stops working and the long inflatable ovals are the honest answer.
What it costs to run: At the published four-week change interval, 77 gallons is about 1,001 gallons a year — roughly $6 of water at the EPA WaterSense average of $6.06 per 1,000 gallons. Every ice session also cools 64 percent less water than the 216-gallon inflatable, which is where the real running-cost difference sits.
Several seasons: Buy-once. Built and warranted to come back out of the box for a few years, if you store it properly.
Specs from: Ice Barrel 300 — published capacity, dimensions, weights, material, insulation and chiller port spec, Ice Barrel warranty page — "limited lifetime warranty" and "limited to 3 years", plus the sunlight fading exclusion
Pick #2 · The best-specified cheap tub, and the one that can take a chiller later
The Pod Company Ice Pod Pro, 110 gal
The Pod Company
A hundred and ten published gallons with double-layer insulation, a reinforced thermal lid, a UV-resistant nylon shell and chiller compatibility stated on the listing. If you are starting with ice and might add a chiller, this is the tub that does not have to be replaced to do it.
#ad how this is funded · price as of October 17, 2026
Key specs
- Water capacity
- 110 gallons (420 L), published
- Fits users up to
- 6 ft 7 in, published
- Insulation
- "Double-layer insulation and a reinforced thermal lid", published
- Shell
- UV-resistant nylon with a leak-proof PVC liner, published
- Chiller
- Published as compatible with The Pod Company's own water chiller
- Drain
- Dual drain hoses, published
- Session guidance
- Maker's own: "Use daily or post-workout for 2-10 minutes"
How it scoresour reading of published specs, not a test result
- Capacity
- 7.5
- Insulation
- 7.0
- Chiller fit
- 7.5
- Build
- 6.5
- Value
- 9.0
Overall 7.5 / 10
What works
- Publishes both a gallon figure and a liter figure, and they agree (110 gal / 420 L)
- Chiller compatibility is stated, so the ice-to-chiller upgrade does not mean a second tub
- UV resistance is named for the shell fabric, which is what fails first on a tub left outside
- Insulated lid included, which is the single thing that decides how long a filled tub stays cold
What doesn't
- No insulation thickness or R-value published, so "double-layer" cannot be compared to anything
- 110 gallons is more water to chill than the 79-gallon rating of the common 1/3 HP chiller
- Inflatable construction, so it is a puncture risk in a way a rigid barrel is not
- Published session guidance of 2-10 minutes is broad enough to be no guidance at all
Skip it if: Being matched to a budget chiller. At 110 published gallons it sits above the 79-gallon rating the cheap 1/3 HP units publish, so a chiller that fits it is a bigger purchase than the tub.
What it costs to run: Four weeks between water changes is the published interval across this category, so 110 gallons is about 1,430 gallons a year. At the EPA WaterSense national average of $6.06 per 1,000 gallons that is about $8.70 of water a year — the water is never the expensive part.
One honest season: The cheapest setup that genuinely works for a season of real swimming. Nothing spare, nothing missing.
Pick #3 · Finding out whether you will actually do this
Bubplay Ice Bath Cold Plunge Tub, 105 gal
Bubplay
A hundred and five published gallons, a fitted insulated cover and eight stainless support rods for about the price of a pool cover clip set. Buy it to discover whether cold water is a habit or a January idea, and expect to replace it if it becomes a habit.
Key specs
- Water capacity
- 105 gallons, published
- Fits users up to
- 6 ft 7 in, published
- Outer fabric
- 210D, published
- Cover
- Included, published as a 6-layer insulated construction
- Structure
- Inflatable top ring plus 8 stainless steel support rods, published
- Drain
- Bottom drain valve with hose included, published
- Freezing weather
- Maker's own guidance: "use indoors when temperatures drop below freezing"
How it scoresour reading of published specs, not a test result
- Capacity
- 7.0
- Insulation
- 5.5
- Chiller fit
- 2.0
- Build
- 5.0
- Value
- 9.0
Overall 6.3 / 10
What works
- Publishes a gallon figure, a height fit and a fabric denier, which is more than the price suggests
- Cover is in the box, and the cover is what keeps the cold in between sessions
- Support rods mean it stands up on its own rather than relying on water pressure
- Folds flat, so an abandoned experiment does not become a yard ornament
What doesn't
- No chiller ports, so this is an ice-only tub unless you drop a submersible pump in it
- The maker itself tells you to move it indoors below freezing, which is most of the plunge season in a cold climate
- 210D fabric is luggage-grade, not the drop-stitch construction the dearer inflatables use
- 105 gallons is a lot of water to cool with bagged ice
Skip it if: Living outdoors through a northern winter. The published guidance is explicit about moving it inside below freezing, which makes it a garage tub rather than a backyard one.
What it costs to run: Running cost here is ice, and ice scales with gallons. At 105 published gallons this needs about a third more ice per session than the 77-gallon Ice Barrel 300 and about half what the 216-gallon inflatable needs — the arithmetic is on our cold plunge running-cost guide.
One honest season: The cheapest setup that genuinely works for a season of real swimming. Nothing spare, nothing missing.
Pick #4 · Lying down rather than sitting up — and the trap that comes with it
VEVOR Cold Plunge Tub, 216 gal
VEVOR
The most tub for the money and the most water to cool: 216 published gallons in a 59 x 31.5 x 29.9 in oval with 3.1 in drop-stitch walls and G1/2 in chiller ports. It is nearly three times the water of an Ice Barrel 300 and well past the published rating of every affordable chiller.
#ad how this is funded · price as of October 17, 2026
Key specs
- Water capacity
- 216 gallons, published
- Dimensions
- 59.1 in x 31.5 in x 29.9 in, published
- Fits users up to
- 6 ft 9 in, published
- Wall construction
- 3.1 in thick drop-stitch fabric, published
- Temperature range
- Published as resisting deformation from -4 degreesF to 140 degreesF
- Chiller ports
- Standard G1/2 in with adapters, published
- Empty weight
- 29.8 lb, published; dual-action pump, carry bag and repair kit included
How it scoresour reading of published specs, not a test result
- Capacity
- 9.5
- Insulation
- 4.5
- Chiller fit
- 5.0
- Build
- 7.0
- Value
- 7.0
Overall 6.9 / 10
What works
- Drop-stitch walls at a published 3.1 in are a real structural spec, not an adjective
- Publishes a temperature range for the material, which nothing else in this category does
- Standard G1/2 in ports rather than a proprietary fitting, so chiller choice stays open
- Full-length oval, so tall users lie down instead of folding into a barrel
What doesn't
- 216 gallons is 2.7x the 79-gallon published rating of the common 1/3 HP chiller — the cheap chiller cannot hold this
- Ice cost scales directly with gallons, so the cheapest big tub is the dearest to run on ice
- No insulation specification published at all, only the wall thickness
- Stock on this listing has been thin
Skip it if: Being chilled affordably. This is the clearest example of the trap on this page: the tub is cheap, the water in it is not, and no chiller under four hundred dollars publishes a rating that covers it.
What it costs to run: On the published four-week change interval, 216 gallons is about 2,808 gallons a year, or roughly $17 of water at the EPA WaterSense average of $6.06 per 1,000 gallons. The ice is the number that matters: every session cools nearly three times the water of a 77-gallon barrel.
One honest season: The cheapest setup that genuinely works for a season of real swimming. Nothing spare, nothing missing.
Pick #5 · Tall users who want a rigid, insulated tub
Ice Barrel 500 Freestanding Cold Plunge
Ice Barrel
The reclining Ice Barrel, published as fitting users up to 6 ft 9 in, and the only tub on this page with an insulation figure attached to it: Ice Barrel states the line is "rated at R-16". Its capacity is published as two different numbers depending on which of the maker's own channels you read.
#ad how this is funded · price as of October 17, 2026
Key specs
- Water capacity
- Conflicting: icebarrel.com publishes 356 L, which it gives as 94 gallons; the Amazon listing states a "105-gallon capacity"
- Dimensions
- W 30.7 in x H 42.1 in x L 57.6 in, published
- Weight
- Conflicting: "104 lbs. when empty" on the product page, "Weight empty: 106 lb" in the FAQ
- Insulation
- "rated at R-16", published for the Ice Barrel line
- Material
- "Recycled BPA-free" LLDPE, made in the USA, published
- Fits users up to
- 6 ft 9 in, published
- Chiller ports
- 3/4in NPT with 14 TPI, published; "Drain spout assembly required"
How it scoresour reading of published specs, not a test result
- Capacity
- 7.0
- Insulation
- 9.5
- Chiller fit
- 9.0
- Build
- 9.0
- Value
- 4.5
Overall 7.6 / 10
What works
- The only published R-value in this category, at R-16 for the line
- Published fit to 6 ft 9 in, which the barrel format and most hard tubs cannot do
- Rigid, insulated and freestanding, so it is a permanent fixture rather than a seasonal one
- Chiller-ready with the same standard 3/4 in NPT ports as the 300
What doesn't
- Ice Barrel publishes two different capacities for it — 94 gallons on its own site, 105 gallons on its Amazon listing
- Two different empty weights published on its own site as well
- The warranty page's "limited lifetime" is contradicted on the same page by "limited to 3 years"
- The dearest tub here by a wide margin, and the drain spout assembly is published as required rather than fitted
Skip it if: Being moved. At a published 104 lb empty and 900 lb full it goes where you put it, which is the trade for the insulation and the rigidity.
What it costs to run: Even at the higher of its two published capacities, 105 gallons on the four-week change interval is about 1,365 gallons a year — about $8 of water at the EPA WaterSense average. The tub costs more than a decade of its own water.
Several seasons: Buy-once. Built and warranted to come back out of the box for a few years, if you store it properly.
Specs from: Ice Barrel 500 — published dimensions, weights, R-16 insulation rating, material and the 94-gallon capacity figure, Ice Barrel 500 — Amazon listing, where capacity is published as 105 gallons
Pick #6 · The cheapest way to stop buying ice — if your tub is small enough
FADHOLE 1/3 HP Cold Plunge Chiller
FADHOLE
A 1/3 HP chiller that publishes the two numbers that decide everything: rated "for up to 79 gallons (300L)" and cooling at 2 degreesF per hour. Read those together and most cheap tubs on this page are too big for it, which is the single most useful fact in this category.
Key specs
- Rated capacity
- "Designed for up to 79 gallons (300L)", published
- Cooling rate
- "Cooling 2 degreesF/H", published
- Minimum temperature
- Cools water down to 42 degreesF, published
- Ports
- Connects to tubs with 1/2 in inlet/outlet ports; insulated hoses and fittings included, published
- Filter
- Washable fine-mesh metal filter rather than a disposable cartridge, published
- Supply
- 115 V; unit weight 36 lb, published
- Input power
- Not published — HP is a compressor rating, not a power draw, so running cost cannot be calculated from it
How it scoresour reading of published specs, not a test result
- Capacity
- 4.0
- Insulation
- 6.5
- Chiller fit
- 8.0
- Build
- 6.5
- Value
- 8.0
Overall 6.7 / 10
What works
- Publishes a rated gallon figure, which is the one spec that tells you whether it suits your tub
- Publishes a cooling rate, so time-to-temperature is simple division rather than guesswork
- Reusable metal filter instead of a consumable cartridge removes a recurring cost
- Includes a submersible pump, so it works with a plain bathtub as well as a ported plunge tub
What doesn't
- 79 published gallons rules out the 105, 110 and 216-gallon tubs on this page
- 2 degreesF per hour means a 15-degree pull takes most of a working day
- Input wattage is not published, so the electricity cost of running it cannot be computed from published figures
- One-year warranty on a sealed refrigeration system
Skip it if: Big tubs. The published rating is 79 gallons and it should be read as a limit, not a suggestion — pairing it with a 216-gallon inflatable is asking it to do 2.7x its stated job.
What it costs to run: The honest statement is that this cannot be costed from what the maker publishes. No chiller in this category publishes an input wattage, and horsepower is a compressor rating rather than a draw — so the kWh figure that would let you price a season does not exist. Our running-cost guide shows what can be computed instead.
Several seasons: Buy-once. Built and warranted to come back out of the box for a few years, if you store it properly.
Pick #7 · A matched chiller and tub in one box, with the mismatch built in
AS ColdPlunge 1/3 HP Chiller and 100 gal Tub Bundle
AS ColdPlunge
A 1/3 HP chiller sold with a 100-gallon insulated tub, which is a convenient bundle and a published sizing problem: the same class of chiller publishes a 79-gallon rating elsewhere. It is the cheapest ice-free route, and the tub is 21 gallons past where that class of unit is usually rated.
#ad how this is funded · price as of October 17, 2026
Key specs
- Tub capacity
- 100 gallons, published
- Tub insulation
- "Reinforced PVC and 10 mm EPE insulation", published
- Chiller
- 1/3 HP, cools to 42 degreesF, LED touchscreen thermostat, published
- Filtration
- External circulation pump with a 20-micron replaceable filter, published
- Included
- Insulated hoses, quick-connect fittings, sealing tape and a submersible pump for bathtub use, published
- Warranty
- 1 year, published
- Rated capacity of the chiller
- Not published for this bundle — the comparable 1/3 HP unit publishes 79 gallons
How it scoresour reading of published specs, not a test result
- Capacity
- 7.0
- Insulation
- 7.5
- Chiller fit
- 6.5
- Build
- 6.5
- Value
- 8.5
Overall 7.2 / 10
What works
- Publishes an actual insulation figure for the tub: 10 mm EPE
- Publishes a filter rating of 20 microns, which nothing else here does
- One purchase, matched fittings, no port-size research needed
- Cheapest ice-free setup on this page by a wide margin
What doesn't
- The chiller's rated gallon capacity is not published for the bundle, which is the figure that decides whether it can hold the tub
- 100 gallons against the 79-gallon rating published for the equivalent standalone unit
- 20-micron filter is a replaceable cartridge, so it is a recurring cost the metal-filter unit does not have
- Chiller and tub are published as shipping separately and may arrive on different days
Skip it if: Telling you whether it is correctly sized. The bundle publishes the tub's gallons and the chiller's horsepower but not the chiller's rated gallons, which is the one number that would settle it.
What it costs to run: Same gap as every chiller here: no input wattage is published, so a season cannot be priced from the maker's figures. What can be priced is the water — 100 gallons on the published four-week interval is about 1,300 gallons a year, roughly $8 at the EPA WaterSense average of $6.06 per 1,000 gallons.
Several seasons: Buy-once. Built and warranted to come back out of the box for a few years, if you store it properly.
Questions people actually ask
What size cold plunge tub should I buy?
How cold should a cold plunge be?
Do you need a chiller for a cold plunge tub?
How often do you change the water in a cold plunge?
Is a cold plunge tub worth it over a stock tank or a chest freezer?
Sources
- Ice Barrel 300 - published capacity, dimensions, weights, insulation and chiller port specification
- Ice Barrel FAQ - published target temperature, session duration and four-week water change interval
- Ice Barrel warranty - the "limited lifetime" and "limited to 3 years" statements, and the sunlight fading exclusion
- FADHOLE 1/3 HP chiller - published 79-gallon rating and 2 degreesF per hour cooling rate
- EPA WaterSense - national average water rate used for the refill arithmetic
Read next
- Above-ground pools for ordinary backyardsSoft-side, metal-frame and steel-wall pools compared by what they cost across a whole season, not at the till.
- What a cold plunge actually costs to runWater, ice and chiller costs for a backyard cold plunge - what is computable from published figures, what is not, and why the cheap tub is the expensive one.
- Cold plunge against inflatable hot tub: which backyard tub to buy this winterThe two backyard tubs that make sense in winter, compared on what each publishes about energy, water changes, sanitizer and who can actually use it.
- Inflatable hot tubs, judged on the bill rather than the bubblesThe two inflatable hot tubs worth shortlisting, compared on insulation and cover rather than jet count, plus the running cost nobody publishes.
- An inflatable hot tub in winter: never let it freeze, cover everything elseWhat changes when an inflatable hot tub runs through the cold months - the loss-side purchases that pay for themselves, and the freeze failure that ends the tub.
- Stock tank pools: the liner is not optionalWhat a galvanized stock tank costs to turn into a pool, and the published corrosion figures that make a liner the first purchase rather than the last.
- Hot tub water change: the arithmetic says two weeksWhy an inflatable hot tub needs its water changed in weeks rather than months, the arithmetic behind it, and what to do at each change.
- Gifts for hot tub owners: the tub is in use, and almost nothing fits itSpa gifts chosen around two published facts - filter types do not interchange, and the dose instructions assume a tub twice the size of an inflatable one.